Ability to ignore comments when calculating PostRank?

As much as comments are a great measurement of post activity, is there any chance we might get an API option to ignore them when calculating PostRank? I understand that auto-identifying comment counts can be something of a voodoo science--it'd be nice if there was an option to ignore comments in favor of all of the (more vetted) data AideRSS collects.

Thanks for your time, and keep up the awesome work!